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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright © 2021-2022 Dmitry Salychev
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _DPAA2_MC_H
#define _DPAA2_MC_H
#include <sys/rman.h>
#include <sys/bus.h>
#include <sys/queue.h>
#include <net/ethernet.h>
#include <dev/ofw/openfirm.h>
#include "pci_if.h"
#include "dpaa2_types.h"
#include "dpaa2_mcp.h"
#include "dpaa2_swp.h"
#include "dpaa2_ni.h"
#include "dpaa2_io.h"
#include "dpaa2_mac.h"
#include "dpaa2_con.h"
#include "dpaa2_bp.h"
/*
* Maximum number of MSIs supported by the MC for its children without IOMMU.
*
* TODO: Should be much more with IOMMU translation.
*/
#define DPAA2_MC_MSI_COUNT 32
/* Flags for DPAA2 devices as resources. */
#define DPAA2_MC_DEV_ALLOCATABLE 0x01u /* to be managed by DPAA2-specific rman */
#define DPAA2_MC_DEV_ASSOCIATED 0x02u /* to obtain info about DPAA2 device */
#define DPAA2_MC_DEV_SHAREABLE 0x04u /* to be shared among DPAA2 devices */
struct dpaa2_mc_devinfo; /* about managed DPAA2 devices */
/**
* @brief Software context for the DPAA2 Management Complex (MC) driver.
*
* dev: Device associated with this software context.
* rcdev: Child device associated with the root resource container.
* acpi_based: Attached using ACPI (true) or FDT (false).
* ofw_node: FDT node of the Management Complex (acpi_based == false).
*
* res: Unmapped MC command portal and control registers resources.
* map: Mapped MC command portal and control registers resources.
*
* dpio_rman: I/O objects resource manager.
* dpbp_rman: Buffer Pools resource manager.
* dpcon_rman: Concentrators resource manager.
* dpmcp_rman: MC portals resource manager.
*/
struct dpaa2_mc_softc {
device_t dev;
device_t rcdev;
bool acpi_based;
phandle_t ofw_node;
struct resource *res[2];
struct resource_map map[2];
/* For allocatable managed DPAA2 objects. */
struct rman dpio_rman;
struct rman dpbp_rman;
struct rman dpcon_rman;
struct rman dpmcp_rman;
/* For managed DPAA2 objects. */
struct mtx mdev_lock;
STAILQ_HEAD(, dpaa2_mc_devinfo) mdev_list;
/* NOTE: Workaround in case of no IOMMU available. */
#ifndef IOMMU
device_t msi_owner;
bool msi_allocated;
struct mtx msi_lock;
struct {
device_t child;
int irq;
} msi[DPAA2_MC_MSI_COUNT];
#endif
};
/**
* @brief Software context for the DPAA2 Resource Container (RC) driver.
*
* dev: Device associated with this software context.
* portal: Helper object to send commands to the MC portal.
* unit: Helps to distinguish between root (0) and child DRPCs.
* cont_id: Container ID.
*/
struct dpaa2_rc_softc {
device_t dev;
int unit;
uint32_t cont_id;
};
/**
* @brief Information about MSI messages supported by the DPAA2 object.
*
* msi_msgnum: Number of MSI messages supported by the DPAA2 object.
* msi_alloc: Number of MSI messages allocated for the DPAA2 object.
* msi_handlers: Number of MSI message handlers configured.
*/
struct dpaa2_msinfo {
uint8_t msi_msgnum;
uint8_t msi_alloc;
uint32_t msi_handlers;
};
/**
* @brief Information about DPAA2 device.
*
* pdev: Parent device.
* dev: Device this devinfo is associated with.
*
* id: ID of a logical DPAA2 object resource.
* portal_id: ID of the MC portal which belongs to the object's container.
* icid: Isolation context ID of the DPAA2 object. It is shared
* between a resource container and all of its children.
*
* dtype: Type of the DPAA2 object.
* resources: Resources available for this DPAA2 device.
* msi: Information about MSI messages supported by the DPAA2 object.
*/
struct dpaa2_devinfo {
device_t pdev;
device_t dev;
uint32_t id;
uint32_t portal_id;
uint32_t icid;
enum dpaa2_dev_type dtype;
struct resource_list resources;
struct dpaa2_msinfo msi;
/*
* DPAA2 object might or might not have its own portal allocated to
* execute MC commands. If the portal has been allocated, it takes
* precedence over the portal owned by the resource container.
*/
struct dpaa2_mcp *portal;
};
DECLARE_CLASS(dpaa2_mc_driver);
/* For device interface. */
int dpaa2_mc_attach(device_t dev);
int dpaa2_mc_detach(device_t dev);
/* For bus interface. */
struct rman *dpaa2_mc_rman(device_t mcdev, int type, u_int flags);
struct resource * dpaa2_mc_alloc_resource(device_t mcdev, device_t child,
int type, int rid, rman_res_t start, rman_res_t end, rman_res_t count,
u_int flags);
int dpaa2_mc_adjust_resource(device_t mcdev, device_t child,
struct resource *r, rman_res_t start, rman_res_t end);
int dpaa2_mc_release_resource(device_t mcdev, device_t child,
struct resource *r);
int dpaa2_mc_activate_resource(device_t mcdev, device_t child,
struct resource *r);
int dpaa2_mc_deactivate_resource(device_t mcdev, device_t child,
struct resource *r);
/* For pseudo-pcib interface. */
int dpaa2_mc_alloc_msi(device_t mcdev, device_t child, int count, int maxcount,
int *irqs);
int dpaa2_mc_release_msi(device_t mcdev, device_t child, int count, int *irqs);
int dpaa2_mc_map_msi(device_t mcdev, device_t child, int irq, uint64_t *addr,
uint32_t *data);
int dpaa2_mc_get_id(device_t mcdev, device_t child, enum pci_id_type type,
uintptr_t *id);
/* For DPAA2 MC bus interface. */
int dpaa2_mc_manage_dev(device_t mcdev, device_t dpaa2_dev, uint32_t flags);
int dpaa2_mc_get_free_dev(device_t mcdev, device_t *dpaa2_dev,
enum dpaa2_dev_type devtype);
int dpaa2_mc_get_dev(device_t mcdev, device_t *dpaa2_dev,
enum dpaa2_dev_type devtype, uint32_t obj_id);
int dpaa2_mc_get_shared_dev(device_t mcdev, device_t *dpaa2_dev,
enum dpaa2_dev_type devtype);
int dpaa2_mc_reserve_dev(device_t mcdev, device_t dpaa2_dev,
enum dpaa2_dev_type devtype);
int dpaa2_mc_release_dev(device_t mcdev, device_t dpaa2_dev,
enum dpaa2_dev_type devtype);
#endif /* _DPAA2_MC_H */
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